473644620 has 72 divisors (see below), whose sum is σ = 1447284384. Its totient is φ = 125376768.

The previous prime is 473644609. The next prime is 473644631. The reversal of 473644620 is 26446374.

473644620 is a `hidden beast` number, since 4 + 7 + 3 + 644 + 6 + 2 + 0 = 666.

It is an interprime number because it is at equal distance from previous prime (473644609) and next prime (473644631).

It is a Harshad number since it is a multiple of its sum of digits (36).

It is an unprimeable number.

It is a polite number, since it can be written in 23 ways as a sum of consecutive naturals, for example, 15057 + ... + 34263.

It is an arithmetic number, because the mean of its divisors is an integer number (20101172).

Almost surely, 2^473644620 is an apocalyptic number.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 473644620, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (723642192).

473644620 is an abundant number, since it is smaller than the sum of its proper divisors (973639764).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

473644620 is a wasteful number, since it uses less digits than its factorization.

473644620 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 19359 (or 19354 counting only the distinct ones).

The product of its (nonzero) digits is 96768, while the sum is 36.

The square root of 473644620 is about 21763.3779547202. The cubic root of 473644620 is about 779.5025427668.

It can be divided in two parts, 47364 and 4620, that added together give a square (51984 = 228²).

The spelling of 473644620 in words is "four hundred seventy-three million, six hundred forty-four thousand, six hundred twenty".